<!-- 权限管理模块主页 -->
<template>
  <div class="dashboard-container">
    <div class="app-container">
      <!-- 靠右的按钮 -->
      <page-tools>
        <template v-slot:after>
          <el-button type="primary" size="small" @click="addPermission('0', 1)">添加权限</el-button>
        </template>
      </page-tools>
      <!-- 表格 -->
      <el-table border :data="list" row-key="id" default-expand-all="">
        <el-table-column align="left" label="名称" prop="name" />
        <el-table-column align="left" label="标识" prop="code" />
        <el-table-column align="left" label="描述" prop="description" />
        <el-table-column align="left" label="操作">
          <template v-slot="{ row }">
            <el-button v-if="row.type === 1" type="text" @click="addPermission(row.id, 2)">添加</el-button>
            <el-button type="text" @click="editPermission(row.id)">编辑</el-button>
            <el-button type="text" @click="delPermission(row.id)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 放置一个弹层 用来编辑新增节点 -->
      <el-dialog :title="`${showText}权限点`" :visible="showDialog" @close="btnCancel">
        <!-- 表单 -->
        <el-form ref="perForm" :model="formData" :rules="rules" label-width="120px">
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" style="width:90%" />
          </el-form-item>
          <el-form-item label="权限描述">
            <el-input v-model="formData.description" style="width:90%" />
          </el-form-item>
          <el-form-item label="开启">
            <el-switch
              v-model="formData.enVisible"
              active-value="1"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>
        <el-row slot="footer" type="flex" justify="center">
          <el-col :span="6">
            <el-button size="small" type="primary" @click="btnOK">确定</el-button>
            <el-button size="small" @click="btnCancel">取消</el-button>
          </el-col>
        </el-row>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { getPermissionList, addPermission, updatePermission, delPermission, getPermissionDetail } from '@/api/permission'
import { ListToTree } from '@/utils/index'

export default {
  data() {
    return {
      list: [],
      formData: {
        // 名称
        name: '',
        // 标识
        code: '',
        // 描述
        description: '',
        // 类型，不需要显示，因为点击添加的时候就已经知道类型了
        type: '',
        // 树形数据，需要知道父节点是哪个才能知道添加到哪里
        pid: '',
        // 开启
        enVisible: '0'
      },
      rules: {
        name: [{ required: true, message: '权限名称不能为空', trigger: 'blur' }],
        code: [{ required: true, message: '权限标识不能为空', trigger: 'blur' }]
      },
      // 控制弹窗显示或隐藏
      showDialog: false
    }
  },
  computed: {
    showText() {
      // 根据表单数据中有无id判断是编辑还是新增
      return this.formData.id ? '编辑' : '新增'
    }
  },
  created() {
    this.getPermissionList()
  },
  methods: {
    async getPermissionList() {
      this.list = ListToTree(await getPermissionList(), '0')
    },
    // 给权限添加子权限
    addPermission(pid, type) {
      this.formData.pid = pid
      this.formData.type = type
      this.showDialog = true
    },
    // 编辑权限
    async editPermission(id) {
      this.formData = await getPermissionDetail(id)
      this.showDialog = true
    },
    async delPermission(id) {
      await this.$confirm('确定要删除该数据吗?')
      await delPermission(id)
      this.getPermissionList()
      this.$message.success('删除成功')
    },
    async btnOK() {
      // 进行表单校验
      await this.$refs.perForm.validate()
      // 通过判断formData有无id判断是编辑还是新增
      if (this.formData.id) {
        await updatePermission(this.formData)
      } else {
        await addPermission(this.formData)
      }
      this.getPermissionList()
      this.$message.success('操作成功')
      this.showDialog = false
    },
    btnCancel() {
      // 重置表单数据
      this.formData = {
        // 名称
        name: '',
        // 标识
        code: '',
        // 描述
        description: '',
        // 类型，不需要显示，因为点击添加的时候就已经知道类型了
        type: '',
        // 树形数据，需要知道父节点是哪个才能知道添加到哪里
        pid: '',
        // 开启
        enVisible: '0'
      }
      // 重置校验规则
      this.$refs.perForm.resetFields()
      this.showDialog = false
    }
  }
}
</script>

<style>

</style>
